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A charged particle of charge Q is held f...

A charged particle of charge Q is held fixed another charged particle of mass `m` and charge the same sign is released from a distance `r` impulse of the force exerted by the external agent the fixed charge by the time when distance between Q and q becomes `2r` is

A

`sqrt(Q q//4piepsilon_(0)mr)`

B

`sqrt(Qqm//4pi epsilon_(0)r)`

C

0

D

cannot determine

Text Solution

Verified by Experts

The correct Answer is:
B
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